A Brief Review on the Antioxidants and Antimicrobial Peptides Revealed in Mud Crabs from the Genus of<i> Scylla</i>

Yusof, Wan Roslina Wan; Ahmad, Fauziah; Swamy, Mummedy

doi:10.1155/2017/1850928

Cited by 5 publications

(3 citation statements)

References 42 publications

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“…Antimicrobial peptides (AMPs) are short peptides (<10 KDa) with broad-spectrum antimicrobial activities in the host immune response against the invasion of intruding microorganisms [ 50 , 51 ]. In mud crab, a relatively large number of AMPs have been found and summarized (see Yusof, Badruddin Ahmad [51] , for a review of mud crab AMPs). AMPs provide an immediate and rapid immune response in the innate immune system to enhance responses to pathogens [52] .…”

Section: Regulation Of Innate Immunitymentioning

confidence: 99%

Potential role of prebiotics and probiotics in conferring health benefits in economically important crabs

Tran

2022

Fish and Shellfish Immunology Reports

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Section: Regulation Of Innate Immunitymentioning

confidence: 99%

Potential role of prebiotics and probiotics in conferring health benefits in economically important crabs

Tran

2022

Fish and Shellfish Immunology Reports

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“…Genus Scylla are S. olivacea, S. paramamosain and S. tranquebarica are three species of mud crab that have been identified in Malaysia [25]. S. olivacea is that the commonest species compared to alternative species [26]. S. paramamosain is single species compared to other species which is found within the bound space.…”

Section: Datasetmentioning

confidence: 99%

Machine learning with multistage classifiers for identification of of ectoparasite infected mud crab genus <i>Scylla</i>

et al. 2021

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Recently, the mud-crab farming can help the rural population economically. However, the existing parasite in the mud-crabs could interfere the long live of the mud-crabs. Unfortunately, the parasite has been identified to live in hundreds of mud-crabs, particularly it happened in Terengganu Coastal Water, Malaysia. This study investigates the initial identification of the parasite features based on their classes by using machine learning techniques. In this case, we employed five classifiers i.e logistic regression (LR), k-nearest neighbors (kNN), Gaussian Naive Bayes (GNB), support vector machine (SVM), and linear discriminant analysis (LDA). We compared these five classfiers to best performance of classification of the parasites. The classification process involving three stages. First, classify the parasites into two classes (normal and abnormal) regardless of their ventral types. Second, classified sexuality (female or male) and maturity (mature or immature). Finally, we compared the five classifiers to identify the species of the parasite. The experimental results showed that GNB and LDA are the most effective classifiers for carrying out the initial classification of the rhizocephalan parasite within the mud crab genus Scylla.

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“…Interestingly, these MMPs also showed antioxidant action that was enhanced as pH was increased to alkaline conditions, which could, at least in part, reflect the presence of endogenous antioxidant peptides that have adapted to the alkalinity of marine conditions 241 . Antioxidants play an important role in protecting marine organisms from oxidative stress 245,246 and endogenous antioxidant peptides, such as glutathione, carnosine, anserine and balenine, have been identified in a variety of these organisms, including fish, seals, whales and dolphins [247][248][249] . In addition, uncharacterized endogenous antioxidant peptides have been reported in Ocypoda macrocera (The red ghost crab) 250 , Actinopyga lecanora (The stone fish or sea cucumber) 251 , Galatea paradoxa (The common galatea clam) and Patella rustica (The rustic limpet) 252 .…”

Section: Amps From Marine Sourcesmentioning

confidence: 99%

Antimicrobial Peptides with pH-Dependent Activity and Alkaline Optima: Their Origins, Mechanisms of Action and Potential Applications

Phoenix

Harris

Dennison

2021

CPPS

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: A number of disorders and diseases are associated with conditions of high pH and many conventional antibiotics lose their efficacy under these pH conditions, generating a need for novel antimicrobials, and a potential solution to fulfil this need is antimicrobial peptides (AMPs) with high pH optima. This review shows that a variety of anionic and cationic AMPs with this pH dependency are produced by creatures across the eukaryotic kingdom, including humans, rabbits, cattle, sheep, fish and frogs. These AMPs exhibit activity against viruses, bacteria and fungi that involves membrane interactions and appear to be facilitated by a variety of mechanisms that generally promote passage across membranes to attack intracellular targets, such as DNA or protein synthesis, and / or membrane lysis. Some of these mechanisms are unknown but those elucidated include the use of bacterial pores and transporters, the self-promoted uptake pathway and established models of membrane interaction, such as the carpet mechanism, toroidal pore formation, the adoption of tilted peptide and the SHM model. A variety of potential roles have been proposed for these AMPs, including use as antivirals, antibacterials, antifungals, adjuvants to antimicrobial therapy, biomarkers of disease and probes for pathogenic microbes. In this review, these properties are described and discussed, with an emphasis on the antimicrobial mechanisms used by these AMPs and the pH dependency of these mechanisms.

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A Brief Review on the Antioxidants and Antimicrobial Peptides Revealed in Mud Crabs from the Genus of Scylla

Cited by 5 publications

References 42 publications

Potential role of prebiotics and probiotics in conferring health benefits in economically important crabs

Potential role of prebiotics and probiotics in conferring health benefits in economically important crabs

Machine learning with multistage classifiers for identification of of ectoparasite infected mud crab genus <i>Scylla</i>

Antimicrobial Peptides with pH-Dependent Activity and Alkaline Optima: Their Origins, Mechanisms of Action and Potential Applications

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